A San Francisco woman has been sentenced to more than 16 years in prison for running what prosecutors say was a sham university that served as a front for an immigration scam.

Susan Xiao-Ping Su, founder and president of the phoney Tri-Valley University, was also ordered during a hearing Friday to forfeit $5.6 million and pay more than $900,000 in restitution.

Federal prosecutors say Su was selling visa-related documents that allowed foreigners, mostly Indian nationals, to live in the US.

She was convicted in March of visa fraud and other charges. Multiple Tri-Valley employees testified that the school had no graduation or admission requirements and that Su instructed her staff to fabricate transcripts and other documents.